Prepositions with modes of transportation

But if you use your own legs or your horse’s legs, use à:à pied, à cheval

You may see the use of the preposition par such as par le train.
Forget it! Don’t make prepositions more confusing as most of the time French people say en train!

Prepositions to indicate location or direction

The preposition dans indicates a place more precisely than à and often means à l’intérieur de (inside):Dans la chambre = in the bedroom

The preposition chez is used with a person, a person’s name, a pronoun, a person’s profession or business, a group or society:Chez Pierre, chez Yves Saint Laurent, chez moi, chez le dentiste, chez Peugeot…